been working with a portable cd player for a few weeks. however, i managed to burn out the laser, so now it won't read/play discs. it still produces some interesting sounds, imho. the first tracks were recorded from the output of the player, the second tracks are a combination of the output and contact mics on the motors.
cd player one 3
cd player one 4
cd player one with contact mic 1
cd player one with contact mic 3